Indeed, it isn't sexy.. but it's also not meant to be taken seriously, and lots only hate it because they DO take it seriously. It's actually a very hilarious and enjoyable video, just like PRA.
Trust me, I don't take either song seriously, really. That said, one song is charming in its lack of seriousness and the other is annoying, hence why I like one and not the other.
I'm glad you picked up on the joke with LMFAO, too! SAIKI is totally the "I'm Too Sexy" of our generation. And wow, I would have never guessed by coming to ATRL that anyone liked the video for TEOG!